A cubic yard of air weighs about 2 pounds at sea level.
31
The force of a suction cup is calculated using F=AP.
15
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists aren't sure what color dinosaurs were.
312
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Nylon is made from coal and petroleum.
42
The left ear is more responsive to words of love and emotion whispered into it than the right.
40